Heating apparatus



May 5, 1925.1.

- 1,536,646 J. B. ALLINGTON ET AL HEATING APPARATUS Fild Sept. 29, 1924 4 Sheets-Sheet 1 J. B. ALLINGTQN ET AL HEATING APPARATUS Fild Sept. 29, 1924 4 Sheets-Sheet 2 n N m T T w x2 May 5, 1925- J. B. ALLINGTON ET AL HEATI NG APPARATUS Fild Sepf. 29. 1924 4 Sheets-Sheet 5 INKENTORS ([422! 150/! UZ/Q L 4 671224251 L.

May 5, 1925.. H,536,646

J. B. ALLINGTQN ET AL HEATI NG APPARATUS Filed Sept. 29, 1924 4 Sheets-Sheet 4 Patented May 5, 1925.

UNITED STATES PATENT OFFICE.

JOHN B. \ALLINGTON AND CHAnLns L. CADLE, or aocnnsrna, new YORK.

HEATING APPARATUS.

Application filed September 29, 1924. Serial No. 740,483.

To all whom it may concern:

Be it known that we, JOHN B. ALLINGTON and CHARLES L. CABLE, citizens of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Heating. Apparatus; and we do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference numerals marked there- This invention relates to heating apparatus and, more particularly, to hot air furnaces, the chief object of the invention being to provide a simple, practical and durable furnace of this variety especially suitable for use with fluid fuels such as gas.

To these and other ends the invention resides in certain improvements and combinations of parts. all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

. In the drawings: I

Figure 1 is a front elevation of a furnace embodying the present invention with the outer casing in section;

Figure 2 is a top planview of a manifold used in the same Figure 3 is a side elevation of thefurnace with the outer casing in section;

Figure 4 is a side elevation of the combustion chamber and distributing manifold on a somewhat reduced scale:

Figure 5 is an enlarged sectional view on the line 5--5 in Figure 4;

Figure 6 's an enlarged sectional view on the line 6% in Figure 1;

Figure 7 is a front elevation, partly broken away, of a modified embodiment of the invention;

Figure 8 is a side elevation, partly in section, of the modification shown in Figure 7 and Figure 9 is anenlarged detailed view, partly in section, on the line Q's-9 in Figure 7. I

- Similar reference numerals throughout the several views indicate the same parts.

The preferred embodiment of the invention herein disclosed by way of illustration comprises a plurality of radiator sections 10 in the present instance of the fiat, substantially plate-like shape shown in the drawings, Figures 1 and 3. The sections are formedwith corrugated sides to increase the radiating, surface and are substantially constructed as castings of iron or other suitable metal to adopt them to resist the corrosive action of the products of combustion and particularly the condensation from the latter. The sections may be formed with interior bafiies for controlling the circulation of gases thereth'rough but have in the present instance unobstructed interiors with suitable strengthening cross braces indicated at 11, Figure 6. A side edge of each section is formed adjacent its top and bottom with threaded openings 12 by means of which the sections are connected at their upper and lower portions with distributing and discharge manifolds, as hereafter described. The. sections are arranged in spaced rows with the individual sections extending transversely of the direction of. the rows, as shown in Figures 1 and 3, and with the manifold connections turned inwardly.

The distributing manifold is shown at 13 as of an elongated, substantially box-like form, with a row of threaded openings 14 on each side thereof. This manifold is arranged as shown between the rowsof 58(2.

tions and adjacent the upper portions 0 the same in position for establishing communication between its lateral openings 14 and the upper openings 12 of the corresponding radiator sections. A simple and advantageous means ffor connecting the manifold with the sections is provided by the use of nipples 15 each having right and left hand threads at its respective ends for engagement with the threaded connections 12 and 14 of the sections and manifolds. This construction provides an economical, effective and convenient means for connecting these parts facilitating assembly in the initial installation of the apparatus as well as the removal of parts thereof for replacement or repairs. H The combustion chamber 16 is preferably supported from and constructed integrally with the distributing manifold being also formed of cast metal. The main portion of this chamber is of the elongated, substantially box-like shape shown in the drawings, having formed across the same from side to side a partition 17 with socket portions 18 supporting tubular gas burners 19. The chamber has a conducting and radiating portion integrally connected and communicating therewith and .with the distributing manifold 13, this portion being formed to afford an extended radiating surface. For this purpose a series of spaced tubes 20 is preferably employed to afford a relatively large radiating area. The burners are supplied with gas through suitable connections 21 at the front of the furnace.

I A discharge manifold 22 is located between the rows of sections adjacent the lower portions thereof, as shown, and is preferably in the nature of a casting comprising a main tubular portion increasing in diameter from the front to the rear of the furnace where it is provided with an upwardly turned end 23 for connection with an escape flue 24. This manifold is provided on its opposite sides with rows of lateral openings 25 which are threaded to receive nipples 26 connecting the same with the radiator sections. Nipples 26 are similar to nipples 15 described above, having right and left hand threads at their ends affording an effective connection between the parts. It is apparent from the construction already described that the products of combustion are adapted to flow in an efficient manner from the combustion chamber upwardly through the tubes 20 and through the distributing manifold 13 to the radiator sections 10. Passing downwardly through these sections the hot gases are discharged through the manifold 22 into the flue 24. The tubes 20 and radiator sections as well as the manifolds themselves afford ample radiating surface by which the heat of the products of combustion is effectively given up to the surrounding air space so that the temperature of the burnt gases is efficiently reduced through a. wide range and at the bottom of the radiator sections and the discharge manifold to a comparatively low degree with accompanying condensation of constituents. The discharge manifold, by reason of its tapered construction drains such condensation to the rear end where it is discharged through a waste pipe 27 Figure 3.

The rows of radiator sections are preferably supported on trusses 28 at some distance above the floor and the apparatus is enclosed by an inexpensive sheet metal casing 29 to form the air space. Air is supplied to the latter through an intake duct 30 from which it flows into the bottom of the casing. Communicating with the top of the latter are hot air flues 31 through which the air rises after being heated by contact with the apparatus.

In a modified form of construction shown in Figure 7 the same general principles are employed but in this case the radiator sections, while of the same general shape, are arranged parallel with] the direction of the rows. These sections in this modification are placed edge to edge to form the rows, any number of which may be formed, four such rows being shown. The

inner side of each section of the inner rows is connected ad ace11t top and bottom as by means of nipples 33 with the distributing and discharge manifolds 34 and 35, the nipple connections and manifolds being of the same construction already described as also the combustion chamber. The outer and inner rows of sections are connected by similar nipples 36 and the products of combustion pass into the manifold 34 from which they are distributed equally through the various radiator sections. From the latter the cooled gases are collected in the discharge manifold and carried to the flue. The sections are supported on transversely extending trusses 37 and the apparatus is enclosed in a. sheet metal casing 38 similar to that described in connection with the preferred form of the apparatus.

It is apparent from the description and drawings that the apparatus is simple in character and all of its parts are constructed in a practical and economical form and in such a manner also as to facilitate the assembly of the same. The portions through which the products of combustion pass are all substantially constructed as metal castings adapted to durably withstand the corrosive actions of the hot gases and of the condensation from the same to permit the cooling of such gases through a wide range and to a lowtemperature with high efi'iciency.

.We claim as our invention: I

1. A heating apparatus comprising a plurality of radiator sections arranged in spaced relation, a combustion chamber located between said sections and having at its top a distributing manifold connected on opposite sides with the upper portions of the sections. adischarge manifold below said chamber between said sections and connected on opposite sides to the lower portions of the latter, all of said parts being constructed of cast metal to resist corrosion and in fluidtight connection with one another to form a closed system for the products of combustion. fluid fuel burning means in said combustion chamber and a casing enclosing said parts to form an air heating space.

2. A heating apparatus comprising a plurality of radiator sections arranged in spaced relation. distributing and discharge manifolds located respectively between and adjacent the upper and lower portions of said sections, all of' said parts being constructed of ca t metal, nipples h'aving right and left hand threads at the ends thereof for engagement v fth threaded openings in said manifolds and sections to connectthe same,

a cast metal combustion chamber located bespaced relation,

tween said sections and between said manifolds and having a conducting and radiating portion'communicating with the distributing manifold, fluid fuel burner means vin said chamber and a casing enclosing said parts to form an air heating space.

3. A heating apparatus comprising a plurality of radiator sections arranged in distributing and discharge manifolds located respectivelyubetween and adjacent the upper and lower portions of said sections, 'a combustion chamber located between said sections and between said mam-" folds and having a plurality of tubular radiating conductors communicating with said distributing manifold, all of said parts being constructed of cast metal to resist corrosion, fluid fuel burner means insaid chamber, and a casing enclosing said parts to form an air heating space.

4. A heating apparatus comprising a plurality of radiator sections arranged in spaced rows, elongated distributing and discharge manifolds located between said rows and respectively adjacent the upper and lower portions of said sections, conducting and radiating means communicating with and detubes and communicating pending from said distributing manifold, an elongated combustion chamber between said rows communicating with said conducting means at the lower end of the latter, nipple means detachably connecting said mamfolds and sections, and a casing enclosing said parts to form an air heating space.

5. In a heating apparatus, the combination of a plurality of fiat, plate-like radiator sections arranged in spaced rows with the individual sections disposed transversely of the rows, elongated distributing and discharge manifolds located between and parallel with said rows and respectively adjacent the upper and lower portions of said sections, a plurality of conducting and radiating tubes depending from said distributing manifold, an elongated gas combustion chamber on the lower end of said therewith, nipple means detachably connecting said manifolds with the inner side edges of said sections and a casing enclosing said parts to'form an, air heating space.

, JOHN B. ALLINGTON.

CHARLES L. CADLE.

substantially 

